Improvement in cutter for card-setting machine



ence marked thereon, to be a full, clear, and exact description of the' same, and `which, said drawings conl clothing; but it is'alike applicable to other machines `to be rotated upon a centre to present a new cutting dulled or incapable of perfect work.

I i l means of' thesaid Asleeve the cutter may be adjusted constructed upon a single bar, so that the two may be `position desired.

use my invention, I will proceed to describe the saine,

4 the bar Bis attached. l,

that is, the internal diameter of thesleeve being the vthread, and to the inner end of the said sleeve I tix trally to receive'thescrew D, as seen in iigs.i2and 4,

.Davin- MCFARLAND; or'woacnsrnn, MAssAcHUsn'rrs;

`Lette/rsPatent No. 97,667, datedDecember 7, 1869.

\ IMPROAVEMENTIN CUTTER FOR CARD-SETTING MACHINE.

The Schedule referred to lin these Lettera Patentind making part of! the same.

Toall whom it may concern.-

Be it known thatI," Davrn McFARLAND, of Worcester, in the county of Worcester, and State of' Massachusetts, have. invented a new Improvement in Cutterfor Gard-,Setting Machines; andI do hereby declare the following, when taken in connection with the accompanying drawingsfand the' letters of referstitute part of' this specification Figure 1, a side view,

Figure 2, a top view, l Figure 3, a front view of' thevibrating cutter, i

Figure 4, a section throughthe fixed cutter on line :t a', and in Figure 5, aside view ofthe fixed cutter enlarged. This invention relates to an improvement in cutters for machines for the setting of teeth into cardand represent, in-

where the wire is tebegut in similar manner; therefore, while I describe my invention as applied to cardsetting machines, I do not wish to be understood as limiting` myself to that'machine only; and

My invention consistst i First, in the construction of the fixed cutter, so as point to the vibrating cutter, whenever one has become Second, in the arrangement of a cutter, thus constructed, ina sleeve w-thina bearing, so that by relatively to the vibrating cutter.

'lhird,'iu the arrangement of the fixed cutter in a carriage or holder, made adjustable in the cutter lever, so that the holder may be raised or lowered, as the case may be, without disturbing the relative position ofthe vibrating to the fixed cutter.v t

Fourth, in the arrangement oi' the two cutters, thus adjusted'together to bring their cutting edges to the To enable others skilled inthe art to construct and as'illnstrated in the accompanying drawings.

A is the plate or frame of the machine, to which The said bar B'is formed at its inner end so as to `receive a sleeve, a, as' denoted in solid black, fig. 4, the sleeve being heldin position by the set-screw (l.

rlhrougli the'said sleeve a screw, I), passes freely,

same or larger than the extreme diameter ofthe screwthc adjustable fixed cutter Efwhich is tapped cen- A so thatthe said screw D will bind the cutter E hard against the sleeve, making it, whenthus bound together, practically apart of the sleeve.

The cutter itself is notched, grooved, or serrated upon its edge, as seen in fig. 5, each of the notches being. designed. as cutting-points on` the said cutter, and these notches may be of any desired form, the

object being that the notch holds theavire, or serves' position while,

as a guide for the wire to keep it in being cut.

'lo adj ust the cutter E to or from the bar B, so as tobring it to the proper relative position to the vibrating cutter, loose the screw C, and move the sleeve to which the cutter E is fixed, so as to bring the cutter i'nto the desired position, then react the screw upon the sleeve and the cutter is firmly held.

After one of the notches has been useduntil it is dull or impractical for further use, turn the cutter E topr'esent a new notch. This is done by loosening the screw D, and turning the cutter E to the desired position and resetting the-screw D; thus the relative .position of' the cutter is not changed. f

F is the vibrating cutter-lever, pivoted to thel bar B, and actuated by the mechanism of the'machine to swing the yupper end toward and from the fixed cutter E.

G is the fixed cutter-holder, arranged in the upper end ofthe lever F, as seen in figs. 1, 2, and 3, guides being formed therein, and a set-screw, H, passed through a slot in the head, into the holder, as seen in g. 3, sothat the said holder may be adjusted vertically in the lever F. t

I is a cutter, set into the holdcrG, and there firmly 'bound by the 4set-screw t', bearing upon its edge the cutter E, being arranged so that the cutter I will,.when moved forward to the positionfdenoted in brokeny lines, fig. 1, pass on to the surface of the fixed cutter, cutting'the wire which lies in the notch or groove of the fixed cutter.

The fixed cutter is adjustable vertically upon the lever F, so that it may be raised or lowered to present a new cutting-point so soon as one shall have become worn or dulled. v

The bar B is hunger pivoted to the plate A by a screw, L, a slot being formed through theplate A, so as to permit the movement of the bar forward or back.

ing-screw, P, is arranged for varying the elevation of" the cutters, as may be desired.

v By this construction, the cutters once set in the.

machine may be used for a great length ot' time Without the necessity of removing them from themachine,

whereas, as heretofore constructed, so soon as the cutter became dulled at one point, it has been necessary to remove it from the machine to be sharpened.

Having fully described my invention,

What I claim vas new and useful, and desire to sei cure by Letters Patent, isl 1. The cutter E, construct-edwith the notches, grooves, or serrated edge, and adjustable around its centre, so as to' present different cuttingLpoints and form a guide for the Wire, substantially as described.

2. In combination with the circular eutter Ethe 

